Letters automatically adjusted to screen

[blar58]

I have created a proprietary Market Profile indicator and I would like to adjust the letters size AUTOMATICALLY to the screen display as we play with x and y axis shrinking or enlarging the chart.

Is there a conventional way to do this in code ?


Thank you

[NinjaTrader_Jim]

Hello blar58,

Thanks for your inquiry.

You could use a variable for your font size and then use ChartScale.Height and ChartScale.Width to create ratios to scale your font size.

I would recommend comparing the difference between MinValue and MaxValue (MaxMinusMin) with ChartScale.Height to scale on the Y-axis, and to compare how many bars are visible on the chart to ChartScale.Width for the X-axis.

The number of bars visiable on a chart can be found by looping through ChartBars.FromIndex to ChartBars.ToIndex.

Documentation on the items discussed can be found below.

• ChartScale.Width - https://ninjatrader.com/support/help...n-us/width.htm
• ChartScale.Height - https://ninjatrader.com/support/help...-us/height.htm
• ChartScale.MaxMinusMin - https://ninjatrader.com/support/help...axminusmin.htm
• ChartBars.FromIndex - https://ninjatrader.com/support/help..._fromindex.htm
• ChartBars.ToIndex - https://ninjatrader.com/support/help...rs_toindex.htm

Please let me know if I can be of further assistance.

[blar58]

I have a difficult time figuring out how to calculate that ratio to apply the right font size

When the Y axis is small and X axis is large I don't know how a font size would be able to fit the space.

[NinjaTrader_Jim]

Hello blar58,

Using both the Y and X axis would be difficult for font size for that reason. It is my opinion that it would be easier to leave font size to the Y axis and to use the X axis for how many characters are visible with your text.

One idea I can think of for your main goal would be to check if both the Y axis and the X axis are within an acceptable range to allow increasing the font size. One will have to be the minimum.